* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

body {
  background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
  overflow: hidden;
}


.screen {
  position: absolute;
  width: 100%;
  height: 100vh;
  background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2.5rem;
  opacity: 0;
  transform: translateY(0);
  transition: opacity 1s ease, transform 1s ease;
  z-index: 10;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
  border-radius: 20px;
}


#screen1.show,
#screen2.show {
  opacity: 1;
}

#game {
  display: none;
  min-height: 100vh;

  padding: 120px;
  text-align: center;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.1);
}

.slide-up {
  animation: slideUp 1.2s ease forwards;
}


#board {
  display: grid;
  grid-template-columns: repeat(3, 100px);
  grid-gap: 10px;
  justify-content: center;
  margin: 20px auto;
}

.cell {
  width: 100px;
  height: 100px;
  font-size: 2.5rem;
  border: none;
  background-color: #f4d4e2; 
  color: #2c003e;
  border-radius: 12px; 
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.3s ease;
}

.cell:disabled {
  background-color: #e8c2da;
  cursor: default;
}

.cell:hover:not(:disabled) {
  transform: scale(1.05);
  background-color: #f8dce9;
}

#status {
  font-size: 1.2rem;
  margin-top: 20px;
}

#start {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
}

#game h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #f7f5f8;
  text-shadow: 2px 2px 5px rgba(206, 202, 214, 0.3);
  margin-bottom: 20px;
  text-align: center;
  transition: transform 0.3s ease;
}

#game h1:hover {
  transform: scale(1.03);
}

@keyframes slideUp {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(-100%);
    opacity: 0;
  }
}


@media (max-width: 768px) {
  .screen {
    font-size: 2rem;
    padding: 1.5rem;
  }

  #game {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .screen {
    font-size: 1.6rem;
  }
}

#start {
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
}

#start {
  background: linear-gradient(135deg, #fbc2eb, #a18cd1);
  border: none;
  padding: 12px 28px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.3s ease, box-shadow 0.3s ease;
}

#start:hover {
  transform: scale(1.07);
  background: linear-gradient(135deg, #a18cd1, #fbc2eb);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

#start:active {
  transform: scale(0.95);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2) inset;
}